Your lawn is waking up and it’s dry. The snow has been gone for weeks, the ground has thawed, and you know the sprinklers need to come back online — but you also know that turning the water on too fast or missing a cracked fitting from last winter can turn a simple startup into a flooded valve box and a repair bill. J.G. Irrigation handles spring startups across Calgary using a controlled re-pressurization process that catches winter damage as it happens, not after it has soaked your lawn and run up your water bill. If you are wondering when Calgary weather is right for turning your system on, we can help you time it perfectly — but do not wait until every irrigation company in the city is booked solid.
Turning on a sprinkler system in spring is not as simple as opening a valve. Do it wrong and you can blow fittings apart, flood a valve box, or pressurize a cracked line that dumps hundreds of gallons before you notice. Here is why Calgary homeowners call J.G. Irrigation for their spring startup year after year.
We do not crank the valve and hope for the best. Our startup process is called controlled re-pressurization. We open the water supply slowly, in stages, while monitoring every zone for signs of damage. If a head is cracked or a fitting is blown, we see it immediately — at low pressure, before it becomes a geyser. This is the difference between finding a problem and being surprised by one.
We catch winter damage that DIY startups miss. Freeze-thaw cycles in Calgary are brutal on irrigation components. A hairline crack in a spray head body or a valve that split internally over winter might not reveal itself until the system runs for the first time. We inspect every zone as it pressurizes and flag every issue. Most problems we find are fixable on the spot because our trucks carry the parts.
Parts are on the truck — we fix it now. If we find a cracked head, a leaking valve, or a clogged nozzle during startup, we replace it immediately. We carry Rain Bird, Hunter, Toro, and Orbit components plus generic fittings. You do not wait a week for a second visit while your lawn goes unwatered.
Your controller gets reprogrammed for spring. Most controllers lose their settings over winter or need seasonal schedule adjustments. We check the programming on every startup — correct run times, appropriate start times (early morning, not midday), and day-of-week settings that match Calgary’s watering restrictions if applicable. A properly programmed controller saves water and grows healthier grass.
We test the backflow preventer. Calgary bylaws require backflow prevention devices on irrigation systems to protect the potable water supply. We confirm yours is functioning and not leaking. If it needs service, we tell you before it becomes a compliance issue.
Here is exactly what happens when we arrive for your spring startup — step by step, nothing skipped.
Before I touch any valve, I walk the property and inspect every visible component. I look for: sprinkler heads that are visibly cracked or heaved out of the ground by frost, valve boxes full of water or mud, exposed or damaged wiring, and signs of rodent damage (mice love valve boxes over winter). I also check the backflow preventer for external cracks. If the backflow is damaged, pressurizing the system can make it worse — I need to know before I proceed.
This is the step that separates a professional startup from a gamble. I open the main water supply valve slowly — about a quarter turn at a time — while watching the water meter or listening at the backflow for flow. If water is moving when no zone is running, there is a leak somewhere and I stop immediately to find it. Once the main line is pressurized and holding steady, I move to the zones.
I cycle through each zone manually from the controller. As each zone pressurizes, I watch the heads rise and check spray patterns. I look for: heads that do not pop up fully (debris or a damaged riser), heads that spray sideways or mist (cracked body), water bubbling up from the ground (subsurface leak), and zones where pressure drops noticeably (a break in the lateral line). Every zone gets a full visual inspection before I move to the next.
If I find problems — and I usually find at least one or two on systems that were not professionally winterized — I fix them immediately. Cracked heads get replaced. Clogged nozzles get cleaned or swapped. Minor leaks at fittings get tightened or resealed. If I find something major that requires more extensive work, I show you exactly what is wrong and give you a firm price to fix it before proceeding. Most startups include one or two small repairs that take 10 minutes and cost very little. This is also why a proper fall winterization service matters — fewer surprises in spring.
Once the system is mechanically sound, I program the controller for spring conditions. Calgary lawns in May need different run times than in July. I set the schedule based on your landscape — grass type, sun exposure, slope, and soil conditions all affect how much water your lawn actually needs. I also confirm the rain sensor is connected and working if you have one.
I walk the property with you and show you every zone running. You see the coverage, the spray patterns, and that everything is working. If I made any repairs, I show you what was replaced and explain why it failed. You know exactly what was done and what to expect for the season ahead.
If I find damage during startup that needs more extensive repair work, I can handle most of it on the same visit. The goal is one trip, one working system.
Spring startup slots fill fast — by late April, most Calgary irrigation companies are booked two to three weeks out. Call 587-433-4795 now to get on the schedule before the rush.
Spring startup pricing in Calgary typically runs between $95 and $160 depending on system size and what needs attention. Here is the breakdown.
Standard residential startup — $95 to $130. Covers systems with up to 8 zones. Includes full visual inspection, controlled re-pressurization, zone-by-zone activation and inspection, controller reprogramming, backflow test, and minor adjustments (cleaning one or two clogged nozzles, adjusting spray patterns).
Larger residential systems — $130 to $160. Systems with 9 to 14 zones or properties with complex layouts and multiple valve boxes. More zones mean more inspection time.
Repairs found during startup are priced separately. If I find cracked heads, leaking valves, or other winter damage, I will show you the issue and quote a firm price before doing any additional work. Most common startup repairs run between $45 and $120 per head or fitting. The diagnostic is part of the startup — you are not paying extra for me to find the problem.
Commercial and multi-family startups — quoted individually. Larger systems with more complex backflow arrangements and higher zone counts require a site-specific quote.
For homeowners who want both spring startup and fall winterization handled automatically at a bundled rate, our seasonal contract covers both visits plus priority scheduling and discounted repair labor all season long. Most contract customers get their startup scheduled before the general rush because they are already in our system.
“Can I just turn the water on myself? It seems simple enough.”
You can. I also get called every May by homeowners who tried it and are now standing in a flooded valve box or watching water bubble up through their lawn from a cracked pipe they did not know was there. The risk is not the act of turning the valve — it is what you cannot see when you do it. A hairline crack in a spray head body holds at low pressure and bursts when the system runs for 10 minutes. A valve that froze internally over winter will not leak until the zone cycles on. A controller that lost its programming runs zones at random times or not at all. The startup fee is less than the cost of one emergency repair call plus the water you lose before you notice the problem. Most of my customers who tried DIY startup once now call me every spring.
J.G. Irrigation handles spring startups across every quadrant of Calgary — northwest, northeast, southwest, and southeast — including communities like Tuscany, Royal Oak, Panorama Hills, Aspen Woods, Signal Hill, Evergreen, Cranston, Auburn Bay, Mahogany, and McKenzie Towne. We also service Airdrie, Cochrane, Chestermere, Okotoks, and surrounding acreage properties. Most Calgary addresses are within 30 minutes of our dispatch point, which means we can batch startups efficiently and keep scheduling tight through the spring rush.
If you have not booked your fall winterization yet either, ask about our seasonal contract — one call covers both ends of the growing season.
Typically mid to late April is the safe window in Calgary. The ground needs to be fully thawed — if there is still frost in the soil, the pipes are still at risk. I watch soil temperatures and start booking startups when overnight lows consistently stay above freezing and the frost is out of the ground. Calling in early April to get on the schedule is smart. Waiting until the first 25-degree day in May means you are competing with every other homeowner who waited too long.
Yes. I start up systems regardless of who winterized them. I will tell you honestly if I see signs that the winterization was incomplete — water still in low spots, valves not fully drained. That information helps you decide who to use next fall. No judgment, just information.
A standard residential startup takes 45 minutes to an hour and a half depending on zone count and whether I find any issues that need attention. If repairs are needed and I have the parts on the truck, add 15 to 30 minutes. Most startups are completed in a single visit.
Your lawn is waking up and it needs water. Do not gamble on a DIY startup or wait until every irrigation company in Calgary is booked three weeks out. We have been starting up Calgary sprinkler systems for 10+ years, and our controlled re-pressurization process catches winter damage at low pressure — before it becomes a flooded yard and an emergency call. Call J.G. Irrigation at 587-433-4795 or book your spring startup online. Slots fill fast once the weather turns.
